Gas valve



May 27, 1924.

\ J. B. ANDERSON GAS VALVE Original Filed July 14, 1922 12 Sheets-Shex 1FIEJI...

May 27, 1924. 1,495,545

J. B. ANDERSON GAS VALVE Original Filed July 14. 1 2 2 Sheets-Sheet 2FIG.I.

WITNESSES Patented May 27, 1924.

UNI T E D SLT EST;

ME B- BSO r. SEALER eWNse ernrenrnmonn PENNSYLVANIA.

ASSIGNOIRv TO PEOPLES.

ear i r Ga earner be "r arsameni arar as Lya Original application filedJuly 14, 1922, SerialiNo, 575,103; li iy-idegl land'thisapplicationfilediMay 9,

' 1923 Serial- No.- 6 37, 72g.

To all whom it'mcy concern:

Be it known that I, JA es Ba ANDEesoN, residing in Shaler Township, inthecounty.

of Allegheny and State-ofBennsylvania, a. citizen of the United-States;have; invented-.

or discovered a certain. new; and .u seful"'Im-. provement in GasValves, of whichdmprovee ment the following is aspecificatiomf In anapplication for Letters Patent-of the United States filed by me July14th,

1922, and bearing- SerialNoJ 575,103, allowed.

April 12th, 1923, which has matured? into PatentNo. 1,456,754, May. 29,1923, Iv have.

described and claimed a gasburner, and in connection with ithavedescribed-a certain flow-regulating valve.

In the courseof the prosecution of the.

application alluded to for purposes of; di-v vision only, I cancelledclaimsawhiclrgwere.

drawn-to the gas valve. In thisapplication Iv shall describe and claimas, my invention.

the gas valve.

the range ot' supply, and up toztheimaximumof which, the apparatusIiscapable, I may; grade the size .of the stream with greatest accuracy.Additionally I provide: control; of: the ports through which air issupplied to the burner, this port control being SQPQCDJ ordinatedwith-the gas valve thatas --tl1e,-, stream of gas; increases the? airIports-shall shall correspondingly, Widen. Tosthis. co..: ordination is;added .a feature or adjustabile ity, whereby gas valve and air control:mayxv initially be coordinated, and particular adaptation made to suchcircumstantial-1mm:

ters as quality of gas, pressure of, ga s,; or.

even atmospheric conditions.

The invention possessing these; features-I shall showand describe inassociation with a gas burner of-particularvform and-character. Itscharacteristic. feature-is that when the stream of-fuel conveyed tothe'burneris; small, the flame shall be concentrated within a relativelysmall area and, proportionately, as the size or the stream increases,the flame shall widen over an increasinglyjlargerg area. This particularburner.- is; the subject matter or": the.. application to which alreadyI have. made allusion.

In thesac companying drawingsFig. I is aview -inzp'lan from above-ofaburner for a coolnng-gstove: in association with which mypresentginvention isempioyed. Fig. 11- is a; View; 1n vertioalq and.medial section of the burner and" valve, the plane of section .beingindicated by: the line H;..II, Fig. I. Fig. III istagview of'. thestructure .in end ,ele; vation, butJacki-ing:thew gas nozzle. Fig. IV is:a view, in longitddinal and vertical section 015-2 thecgas nozzle; withits contained valve. Associated?- with Fig. are fragmentary.illustrations oftlie. delivery orifice of the nozzle inelevationandof; acertain tongue ingthe position .it assumes as, the valve is un seated;Fig. Vr'is atviewuin elevation of an adjustable disk. which formsv partof the structure, dQtaChQd IIOIII its associate parts. Fig. .VI isafragmentary View in plan from above, illustratinga modification indetail.

Iw'shall': describe? first the. means of CQII". trolling ythe'istreann0155 gas. inwhich means; my present; inyention, centers. 151161 6 referparticularly: to. Figure-IV, Aicasing. 1 is provided with an inlet lead2 and a delivery; orifice- .3. Thea-valve within thei casing is initsgeneralv, features, such as i that described inamy; application forUnited: States Letters Patent filed, March- 0,19 1; Se ialr N 452 57981,

ThQ-kVfilVG; of EigIV (cf.- Fig. II) con sists essentially-of a-,cylindrical body 4- with. conical end, mounted tonaxial traverse insuitablaways within chamber l. An oper ing e ex e ds hr ug a u blepacking gland in the wall ofcasi ng 1, andin 1 a.- direction. at: rightangles; t the axis. of the valve body. Connection between operating stemand; valve body is through a pin 6, placed? eccentrically, on theend ofthe stem 51 andgentering, a. transverse slot 7' inthe valvebod'y. Thecylindrical valvebody is, recessed ona oneside as at 8, and the enlargednd" 9 i of he; a r'e ste rs t e. eces -1 The proportions are such;that,a s,the stem turned and; L the valve, body shifted, the: ange of --va1rrav r e is mit d y I b t. n h @quam L nd f-th r cesa 81111 he vaLve bodyuponthe-cylindrical faceo'f the nl rged 9 il happfilf in i 1 8 1 Threfinement, not shown in that prior patent application. The deliveryorifice 3 of casing 1 is a contracted orifice, and the valve bodyterminates in a tapered tongue 10 which, when the parts are assembledand the valve seated, extends through and fills the delivery orifice. Asthe valve recedes from its seat this tongue is to a greater and greaterdegree withdrawn (to the right as shown in Figure IV) and the deliveryorifice is left more or less completely unobstructed. The tongue ispivoted to the valve body, and when unrestrained drops by gravity fromalignment in the axis of the valve body. The delivery orifice 3 is.preferably square in cross section, and the tongue 10 is square,tapering to an edge. The edge extends transversely to the direction inwhich the tongue is driven against gravity (due to its pivotal mounting)during valve closing. Accordingly, as the valve recedes from its seatthe tongue will uncover an increasingly widening slot, until at lengththe delivery orifice is completely unobstructed.

It will be understood that, tongue 10 being properly proportioned, amost minute gradation in rate of flow through delivery orifice 3 isobtained, from the cracking of the valve all the way to its position offullest openmg.

The gas nozzle delivers its stream axially to an induction passagewayformed through the induction member 11. The gas is delivered through theend of the induction member 11, and through this end and around the gasnozzle streams of air are drawn in by the rush of the gas to mingle withthe gas in the passageway, and to form therein the combustible mixture.The gas nozzle is sup orted in the end of induction member 11 y a bridge12.

Facing the bridge 12 is an adjustable ported disk 13 (of. Figs. TI, III,and V), and facing disk 13 is a damper disk 14. The two disks 13 and 14are mounted for rotation on a bushing 15 carried by bridge 12 andencircling the gas nozzle. Disk 13 is manually adjustable, and provisionis made, as through a segment 16 of a cylindrical shell integral withdisk 13 and overlying the outer surface of the induction member 11,whereby the disk when rotated to the desired position may be secured bya set screw 17. A latch 31 may be provided, for locking disk 13 againstturning beyond a certain point. Such latch when present may constitute asafeguard, to prevent turning by an unskilled person to a degreeunsuited to the conditions of a particular installation. Disk 14 isarticulated with the gas valve, to the end that as the gas valve isopened and closed the damper disk 14 will rotate, and the effective areaof the ports through disk 13 will correspondingly vary. ltieanifestlythe articulation here may take any suitable or convenient form. Fig. IIof the drawings shows a crank pin 18 carried by the valve stem andmaking engagement with a crotch 19 whichv extends from the perimeter ofthe damper disk 14. Fig. VI indicates that damper disk 14 may beprovided with a rack 19*, and that this rack may be en gaged by a pinionor pinion sector (1 term it a quadrant gear) 18 borne concentrically bythe stem of the valve. In either case, turning of the valve stem effectsa proportionate rotation of disk 14. In the specific form shown in Figs.1 and H the pin 18 is shown to be adjustable, so that it may swing on anarc of larger or smaller radius. This manifestly is a provisionaffording possibility of very nice adjustment between valve opening anddamper opening.

The valve stem, as should have been remarked above, whatever be theparticular form of the valve, is provided with an operating handle 20.

The induction lead 11 at the end opposite that where the gas and airenter, is widened, and concentric circular openings of unequal diameter21 and 22 are formed in opposite walls. These opposite walls extend inparallel planes and in normal assembly are horizontally disposed. Inthese concentric and opposite openings the burner is secured, as bestappears in Fig. 11. The burner structure itself, claimed in myapplication first alluded to above, Serial No. 575,103, forms no part ofthe invention of this divisional application; suffice it to say that theburner with which my improved valve is here shown to be associated is soconstructed as to cause the stream of gas to advance in sinuous course.At the crest of the successive sinuosities aredelivery orifices for themixture of gas and air. If the flow be small the combustible mixturewill all escape through the orifices in the crest of the firstsinuosity, and as the flow increases the excess of flow which doe's notfind escape through the orifices in the first crest will flow on andescape through the orifices of a succeeding crest or crests. Thus when.the flow is small, the flame is concentrated, and as the flow increasesthe flame is extended over wider space.

I claim as my invention:

1. A gas nozzle including a valve casing provided with a contracteddelivery orifice of square cross section and with an internal valveseat, and a valve body provided With a conical surface adapted to engagesaid internal seat and with a tongue-like extension of squarecross-section, tapering to an edge, said tongue being pivoted to thevalve body, and in the range of operation protruding to greater or lessextent through said delivery orifice, and means for shifting said valvebody longitudinally of its axis Within said casing.

2. In a valve structure an orifice surrounded by a conical valve seat, avalve body provided With a conical surface adapted to engage said valveseat and provided further With a tongue-like extension pivoted to it,and in the range of operation protruding to a greater or less extentthrough said orifice, and means for shifting said valve body to- Wardand from said valve seat.

In testimony whereof I have hereunto set 20 Witnesses:

FRIEDA E. WOLFE, PERCY A. ENGLISH.

